ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,672, issued on Dec. 23, was assigned to Symrise AG (Holzminden, Germany).
"Rim block with improved scent performance" was invented by Benjamin Rost (Bodenwerder, Germany), Matthias Wunsch (Holzminden, Germany) and Thorsten Boddeker (Brakel, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Suggested is a rim block with improved scent performance, comprising or consisting of: (a) a solid rim block base, (b) at least one non-encapsulated perfume oil, and (c) at least one perfume oil same or different from component (b) encapsulated in a maltodextrin matrix."
The patent was filed on Nov. 29, 2019, under Application No. 17/779,725.
*For further i...